NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Mon, Sep 21, 2026 at 3:32:31 pm CDT

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Special Weather Statement

Air Quality Alert

Today

Tuesday

Seven Day Outlook

Autumnal Equinox

Today will be hot with highs in the 90s. There is a 20-30% chance of showers and thunderstorms during the daytime. Tonight will be warm with early morning lows in the 70s to lower 80s. There is a 20% chance of showers overnight near the Brazos Valley area and off the coast near Galveston Island / Bolivar Peninsula.

Tuesday will be hot with highs in the 90s. There is a 20-40% chance of showers and thunderstorms during the daytime, mainly near the coast. Tuesday night will be warm with early morning lows in the 70s to lower 80s. There is a 20-30% chance of showers overnight over the Gulf waters.

Hot weather continues with highs in the upper 80s/90s. Early morning lows will be in the 70s/mid 80s. Isolated showers and storms will be possible through the first half of the week. A weak frontal boundary pushes into the region on Thursday, bringing drier weather, slim to none rain chances, and a slight decrease in temperatures.

The autumnal equinox occurs on Tuesday, September 22nd, and 7:04 PM CDT and marks the beginning of the astronomical season of fall.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	14:55	Lightning Observed	10	98	66	36	ENE 5	101 [HI]	29.91
College Station	14:53	Mostly Clear	10	97	67	37	VRB 6	101 [HI]	29.89
Caldwell	14:55	Mostly Cloudy	10	96	66	36	CALM	100 [HI]	29.90
Huntsville	14:53	Mostly Clear	10	96	67	38	E 9	100 [HI]	29.90
Navasota	14:55	Partly Cloudy	8	100	66	33	SSE 8	105 [HI]	29.87
Brenham	15:15	Lightning Observed	10	97	65	35	ESE 7	100 [HI]	29.88
Conroe	14:53	Clear	10	96	69	41	VRB 7	102 [HI]	29.90
Cleveland	15:15	Lightning Observed	10				CALM	-	29.91
Liberty	15:15	Clear	10	95	71	46	E 8	103 [HI]	29.88
Columbus	15:15	Clear	10	98	64	33	S 6	101 [HI]	29.88
Spring	14:53	Mostly Cloudy	10	97	69	40		-	29.89
Houston Intercontinental Aprt	14:53	Partly Cloudy	10	94	70	45	ESE 8	100 [HI]	29.88
Katy/Brookshire	15:15	Partly Cloudy	10	96	69	41	CALM	102 [HI]	29.89
Texas Medical Center Heliport	14:55	Mostly Cloudy	10	93	71	49	ESE 10	100 [HI]	29.88
Sugar Land	14:53	Lightning Observed	10	94	70	45	VRB 7	100 [HI]	29.88
Houston Hobby Airport	14:53	Lightning Observed	10	91	73	55	NE 8	100 [HI]	29.88
Arcola/Sienna	15:15	Lightning Observed	10	93	74	53	SSE 10G17	104 [HI]	29.89
Pearland	14:53	Lightning Observed	10	93	73	52	ESE 12G18	102 [HI]	29.91
Ellington Field	14:54	Partly Cloudy	10	93	71	49	ESE 12	100 [HI]	29.88
La Porte	15:15	Clear	10	93	73	52	ESE 12	102 [HI]	29.90
Wharton	15:15	Partly Cloudy	10	94	70	45	CALM	100 [HI]	29.88
Galveston	10:52	Mostly Clear	10	89	77	67	E 10	102 [HI]	30.18
Bay City	15:15	Mostly Cloudy	10	90	75	60	SE 10	100 [HI]	29.85
Palacios	14:53	Lightning Observed	10	93	72	50	S 15	101 [HI]	29.88
Rig 20 Miles SE of Galveston	15:15	Clear	10	87	75	66	VRB 6	96 [HI]	29.92
Rig 20 Miles SE of Matagorda	15:20		10	89	77	66	CALM	102 [HI]	29.94

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